Home / 3,666.50-5,479.61-2,681.39

Finding the Fourth Proportional to 3,666.50, 5,479.61 and 2,681.39

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Solution

The fourth proportional to 3,666.50, 5,479.61 and 2,681.39 is: 4,007.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,666.50 : 5,479.61 = 2,681.39 : x
  2. Step 2: Convert to fraction form
    3,666.50/5,479.61 = 2,681.39/x
  3. Step 3: Cross multiply
    3,666.50x = 5,479.61 × 2,681.39
  4. Step 4: Simplify right side
    3,666.50x = 14,692,991.86
  5. Step 5: Solve for x
    x = 14,692,991.86/3,666.50
  6. Step 6: Final answer
    x = 4,007.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.